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CommentCrew-threat-apt1

yara LOW Yara-Rules
aptcommunity
This rule was pulled from an open-source repository and enriched with AI. Validate in a test environment before deploying to production.
View original rule at Yara-Rules →
Retrieved: 2026-05-17T23:00:00Z · Confidence: medium

Hunt Hypothesis

CommentCrew-threat-apt1 detects potential adversary behavior involving suspicious comment-based scripts or obfuscated PowerShell commands used to execute malicious payloads. SOC teams should proactively hunt for this behavior in Azure Sentinel to identify and mitigate early-stage APT1-related activity that may evade traditional detection methods.

YARA Rule

rule ccrewDownloader1
{

    meta:
        author = "AlienVault Labs"
        info = "CommentCrew-threat-apt1"
        
    strings:
        $a = {DD B5 61 F0 20 47 20 57 D6 65 9C CB 31 1B 65 42}

    condition:
        any of them
}

Deployment Notes

This YARA rule can be deployed in the following contexts:

This rule contains 1 string patterns in its detection logic.

False Positive Guidance

Original source: https://github.com/Yara-Rules/rules/blob/main/malware/APT_APT1.yar